Former Haitian President Laurent Lamothe said the "world is witnessing a new low today" and called Trump's remarks "totally unacceptable!"
Another Republican Representative, Ileana Ros-Lehtinen, who was born in Cuba and whose south Florida district includes many Haitian immigrants, said: "Language like that shouldn't be heard in locker rooms and it shouldn't be heard in the White House".
Racism has a strong ally in President Donald Trump.
The White House did not deny the comment, which was widely reported by other USA media.
Trump made the comments during an Oval Office meeting on immigration, The Washington Post reported Thursday. "He will always reject temporary, weak and risky stopgap measures that threaten the lives of hardworking Americans, and undercut immigrants who seek a better life in the United States through a legal pathway".
The president has been accused of questioning why the United States should accept more immigrants from Haiti and "s***hole countries" in Africa, during a meeting on immigration.
The White House did not deny his remark but issued a statement saying Mr Trump supports immigration policies that welcome "those who can contribute to our society".
Love, the first Haitian-American elected to Congress, whose parents immigrated to the U.S. in the 1970s, went on to detail her family's ties to one of the countries that was maligned by Trump.
"Governor Scott owes every immigrant, and every refugee in this state an obligation to condemn President Trump's loathsome remarks". "If confirmed these are shocking and shameful comments from the president of the United States", United Nations human rights spokesman Rupert Coleville said. "I can't understand how someone goes from making a statement in Little Haiti saying "I want to be the biggest champion of Haiti" to calling Haiti a 's***hole.' It makes me sick". White House officials did not dispute the account.
Condemnation came thick and fast after it was reported US President Donald Trump complained about immigrants coming to the US from "shithole countries". IL state Sen. Kwame Raoul, whose Haitian parents immigrated to the USA in the 1950s, said: "I don't think there's any apologizing out of this". Trump came under fire from conservatives earlier this week for seeming to suggest he would be open to a comprehensive immigration reform deal without money for a border wall, before he quickly backtracked.
Rep. Erik Paulsen (R-Minn.) called it "completely inappropriate for the president to refer to other countries in the manner in which he reportedly did, especially given the circumstances and disasters that led many TPS immigrants to seek refuge and shelter in the U.S". Graham and Durbin thought they would be meeting with Trump alone and were surprised to find immigration hard-liners such as Rep.